baber/WOPTO huggingface dataset:
Patent GB-729258-A (GB)
Title: Improvements in or relating to the modification of epoxy-resins
IPC: C08G59/68
Filed: 1953-02-23
Abstract: Unesterified epoxy resins are hardened by means of polyvalent metal salts of drying acids.  Suitable metals are aluminium, lead, cobalt, manganese, zinc, titanium, copper and calcium and suitable acids are naphthenic, linoleic, oleic, stearic, palmitic, resin acids, abietic acid, colophony, colophony-maleic acid adducts, acids obtained by oxidation of paraffins, albertol acids (obtained by condensation of phenol resins and natural resins), hexoic acid, ethyl-hexoic acid, unsaturated fatty acids which have been reacted with maleic acid or phenols, terpene-maleic acids or the reaction products of terpenes with citric acid or citraconic acid.  The hardening catalyst can be melted into the resin without solvents, care being taken that reaction is sufficient to avoid crystallization on cooling.  Excess hardening agents may be removed by filtration.  Solutions of hardening agents may also be added to the resins which may or may not be in solution.  The resins may be mixed with mono-epoxy compounds, e.g. glycidyl phenyl ether.  In the examples: (1) lead naphthenate is added to a molten resin from p.p1-dihydroxydiphenyldimethylmethane and 1,3-dichlorhydrin.  The cooled mixture is useful for casting or adhesive purposes.  (2) A solution of aluminium naphthenate in ethylene glycol is used.  (3) The hardening catalyst is cobalt resinate.  (4) A resin from resorcinol and epichlorhydrin is mixed with lead naphthenate.  (5) A solution of manganese naphthenate in ethylene glycol is added to the resin of example (1).  (6) Zinc resinate is used as hardening catalyst.  The mixture is particularly homogeneous and transparent.  (7) The catalyst is p  the titanium salt of acids obtained by oxidizing paraffins.  (8) The aluminium salt of a terpenemaleic acid condensate is used. (9) The hardener is lead hexanate.
Patent GB-325992-A (GB)
Title: Improvements in or relating to automatic signs for mechanically-propelled road vehicles
IPC: B60Q1/50
Filed: 1929-02-15
Abstract: 325,992. Baker, J. A. Feb. 15, 1929. Travelling to predetermined limits. - Advertisements and notices are automatically displayed by a movable band J on a motorvehicle when the gear level L is moved into the reverse position R or into any one of the forward positions 1 - - 4 in the gate G. The band J is actuated by rollers R driven by an electromotor M which is energized when the gear lever L is moved, say, into the position 2, thereby closing contacts C, C<1> in a circuit from a source S to earth EB, and actuating an electromagnetic switch D which closes another circuit from a source S<1> through switches Q, K, the motor M, switches U, IT to earth E. The power circuit driving the band J is broken when an attachment N on the moving band engages the switch K. In order to maintain the switch D in the closed position when the gear lever is moved to one or other of the positions R, 1, 3, 4, a maintaining line 15 couples the two circuits. An attachment O on the band is used to close contacts P in a circuit for giving to the driver an audible or visible signal V that the band has reached a certain position and also for actuating by means of an electromagnet 20 the switch IT for reversing the motor connections. The switch IT is also arranged to be engaged and moved into its reverse position by the gear level L when moved into the reverse slot R. A hand switch U is provided to reverse the motor in the event of the failure of the switch IT or other part. A safety device to stop the motor when the band has travelled to a certain limit is provided by using the attachment O to operate the switch Q. A plug-and-socket device is arranged on the terminal board W of the motor for use in the event of failure of the reversing switches U, IT. Specifications 900,446, [Class 40 (i), Electric signalling systems &c.], and 301,203 are referred to.
Patent GB-717434-A (GB)
Title: Improvements in liquid fuel burners
Inventor: ECCLESTON EDWIN DEGGE
IPC: F23D3/00
Filed: 1952-02-27
Abstract: 717,434. Wick burners. SHERWOODS, Ltd. Feb. 27, 1953, [Feb. 27, 1952; April 30, 1952; Feb. 10, 1953.] Nos. 5094/52, 10818/52 and 3660/53. Class 75 (1). In a burner in which a circular wick (not shown) is mounted in a tubular wick carrier 3 arranged to be raised and lowered by winding mechanism, the wick is connected to the carrier 3 by a split band 7 which extends around the carrier and has wick gripping devices, for instance prongs 9, which engage openings 10 in the carrier and grip the wick, means being provided for holding the band on the carrier. One end of the split band has a hook 11 for engaging a slot 12 in the carrier and the other end has a curved detent 13 held in another slot 14 in the carrier by a pin 17 engaging under a pair of straps 15 on the carrier and over the detent. Alternatively, the split band may be secured to the carrier by a sleeve push-fitted over the split band or by a coaxial tube provided in the burner body and adapted to surround the carrier. The first Provisional Specification states that the split band is made of springy metal so as to contract about the carrier. The second Provisional Specification states that the split band may be held in position by a ring which is either a push-fit over the band or is internally screw-threaded to screw on to an externally threaded band. According to the third Provisional Specification the band is retained in position by a sleeve which is screwed to the outside of the carrier.
Patent GB-730072-A (GB)
Title: An improved method of detecting imperfections in the seams of pressure vessels
IPC: G01M3/22
Filed: 1953-02-24
Abstract: 730,072. Detecting leaks in hollow-ware. HAWORTH, A. R. Feb. 23, 1954 [Feb. 24, 1953], No. 5095/53. Class 106 (2). In a method for detecting imperfections in seams of boilers, which imperfections are liable to cause a leakage of fluid from the boiler into the seam and consequential internal damage to the seam, a solution of a fluorescent substance in a penetrating volatile solvent is forced into the seam through a hole a drilled for the purpose and then allowed to evaporate, any leakage of the solution from inside the seam being detected by radiating the seam and the surrounding area with ultraviolet light.
Patent GB-739596-A (GB)
Title: Improvements relating to delivery apparatus for printing machines
IPC: B65H29/16
Filed: 1953-02-24
Abstract: 739,596. Sheet delivery apparatus. PRINTING MACHINE SERVICE (ENGINEERS), Ltd., and HARTLEY, F. March 2, 1954 [Feb. 24, 1953], No. 5120/53. Class 100 (1). Apparatus for receiving printed sheets from a printing machine 12, in which the printed sheets delivered by the printing machine are conveyed to a stack by a frame 8 having travelling tapes 9, 10, on which the sheets are carried, the frame being pivotally mounted at one end so that it can be swung upwards to enable an operator to pass between the stackcarrying structure and the printing machine, has a structure on which the frame is pivotally mounted and from which a table for carrying the stack of sheets is suspended by cords or chains passing over pulleys to a drum which is rotated intermittently to unwind the cords or chains and lower the table as the stack is formed. The apparatus is mounted on pillars 1, 2, 3, 4, two beams 6 supported by cords 7 being provided to support a table for receiving the sheets. The tapes 9 on the frame 8 run over idler pulleys 18 and pulleys 16 on a driven shaft 17, whilst the tapes 10 are of shorter length and run over idler pulleys 18a and pulleys 19 on the shaft 17 which are of greater diameter than the pulleys 16 so that the sheets are accelerated. The shaft 17 is driven from a motor 20 by chain 21, sprockets 22, 23, free on a shaft 24, chain 25, sprocket 26, loose on a shaft 11 and gear 27, attached to sprocket 26. The frame is pivoted about the shaft 11 by a handle 13 and a worm 14 driving through a worm-wheel 15 a gear-wheel 15a on the shaft 11. The motor 20 drives a fan 28 which supplies air to nozzles 29 to assist in depositing the sheets. Side-plates 30 are reciprocated by adjustable cranks 31 actuated by links 32 connected to crank arms 33 on a shaft 34 which is rocked by an eccentric wheel 35 driven by sprocket 26 and bearing against a wheel 36 on a lug 37 on the shaft 34. An adjustable front stop 39 is provided. The cords 7 are wound on a drum 40 rotated by the rocking shaft 34 through an arm 41, link 42, and arm 43 carrying a pawl 44 which drives a ratchet-wheel 45. In the shaft of the wheel 45 is a worm gear 46 driving a worm-wheel 47, loose on the shaft of the drum 40 and integral with a ratchet wheel 48 which is engaged by a pawl 49 mounted on a gear-wheel 50 keyed to the shaft of the drum 40. Thus, when the worm-wheel 47 is turned clockwise the drum is also allowed to turn to unwind the cords. For manually raising the table a handle 52 is provided on the shaft of which is a gear 51 meshing with the gear 50. An adjustable lever 53 mounted on the shaft of the ratchet-wheel 45 enables the operative stroke of the pawl 44 to be varied.
Patent GB-1476542-A (GB)
Title: Closure device for non-refillable bottles
IPC: B65D49/06
Filed: 1975-02-06
Abstract: 1476542 Dispensing closure for non-refillable bottle COMPANIA DE TAPONES IRRELLENABLES SA 6 Feb 1975 [7 Feb 1974] 5134/75 Heading B8D A closure device for a non-refillable bottle 14 comprises a movable sealing ball 4 which sealingly engages an aperture 6 at the lower end of a plug 1 when the bottle is upright, and a movable disc 3 seated on a ring member 8 of the plug 2 and provided to prevent access to the ball 4, but movable into contact with an apertured upper cover 2 when the bottle is in a pouring attitude and the ball 4 moves from the aperture 6. A projection 9 on the disc 3 enters a cavity 10 in the cover 2 to limit movement of the disc.
Patent GB-693903-A (GB)
Title: Adjustable electric light fittings
IPC: F21V21/14
Filed: 1950-03-01
Abstract: 693,903. Lamp brackets. EDIS. R. H. Feb. 28, 1951 [March 1, 1950], No. 5150/50. Class 52(v) [Also in Groups XI and XXXVI] An electric light fitting comprises a telescopic casing 10, 11 the outer member 10 having an enlarged extension which acts as a seating for insulated blocks 13 which hold the square sectioned inner member 11 against rotation. A leaf spring 14 holds the members in any desired position. At its ends the inner member has insulated blocks 17, 19 which receive a hollow electrical conductor 18. A second electrical conductor member 24 in sliding contact within the member 18, is held by an insulating block 25 secured to the end of the casing. 10 so that extension or contraction of the telescopic casing will cause corresponding movement of the conductor. A disc 26 of insulating material at the end of the casing 10 is held in position by a cap 15 with a hollow spigot 16 secured to the ball 28 of a ball and socket joint 27. The electric supply is led in through a terminal post 35 provided with a contact making portion having a spherical surface 36 engaged by a spring-pressed brush 39 connected to the conductor 24 through a metal conductor 38 fitted within an insulated bush 37 in the hollow spigot. In a modification, Fig. 6, for use with double pole lamps a pair of extensible conductors are housed in the telescopic casing 10, 11. A pair of tubular members 18 forming part of the extensible conductors are embedded in the insulating blocks 17, 19 and the outer ends of rods 43 which engage in the tubes 18 are embedded in the block 25 and are led out of the casing 10 through bushes 44. A switch 45 is opened when the inner tube 11 is moved to where it is almost wholly nested within the tube 10. The tube 10 is connected to the ball 53 of a ball and socket joint.
Patent GB-297637-A (GB)
Title: Improvements in reversing gear for washing machines and similar reversible machines
IPC: D06F37/36
Filed: 1928-02-18
Abstract: 297,637. Schurmann, E. Feb. 18, 1928. Reversing-gearing is operated automatically by the power of a driving-belt K, Fig. 1, which reciprocates laterally between pulleys G, E, which are connected by opposite-driving trains to shaft A of, say, a washing-machine. A jockey pulley M over which the belt K runs moves laterally with the belt. The pulley M is supported in a casing N adapted to slide on fixed guides P and is connected through a worm m<1>, Fig. 3, and a suitable gearing m<2> to a revoluble crank pin m<5>. A cam O in the shape of an hour-glass is stationary. As the pin m<5> moves over this cam, the casing N carrying with it pulley M and belt K is reciprocated with a dwell at the end of each stroke while pin m<5> is moving idly between the sides of cam O. The guides P are supported on an arm b<1>, Fig. 1, which is movable to tension the belt. The drive is disconnected by sliding the cam O upwards out of mesh with pin m<5>. This is done by turn. ing over a weighted lever R.
Patent GB-230257-A (GB)
Title: Improvements in or relating to pivot-adjustments for wind screens and other pivoted articles
IPC: B60J1/04
Filed: 1924-11-15
Abstract: 230,257. Olds, S., and Olds, S. Nov. 15, 1924. Pivoting-adjustments.-For locking a wind-screen in an adjusted position the block 6 that engages the fixed pivot pin 2 is rotatably mounted on the end of a clamping screw 7 and is non-rotatably mounted in the boss 5 by a grub screw 9 engaging a fixed guide 10. The engaging surfaces of the block and pivot pin are formed with fine teeth. The wind-screen is carried by a sleeve 1 encircling the fixed pivot 2, and secured to the sleeve is the boss carrying the clamping-screw. A spring washer may be positioned under the winged head of the clamping screw.
Patent GB-558099-A (GB)
Title: Improvements relating to photographic materials
IPC: G03C1/10
Filed: 1942-04-21
Abstract: 558,099. Photographic sensitive materials. KODAK, Ltd., and KNOTT, E. B. April 21, 1942, No. 5300. [Class 98 (ii)] The tendency for a sensitizing dye to wander from a dye-sensitized silver salt emulsion to a neighbouring silver salt emulsion is reduced by adding to the dye-sensitized emulsion (before bringing it into association with the neighbouring emulsion) a sensitive silver salt emulsion which is slower and of finer grain than either, The emulsion may be mixed or coated in successive layers without an intervening layer, and both may be dye-sensitized. The slow emulsion may be a Lippmann type emulsion and may have a threshold speed of not more than a fifth of that of the slower of the other emulsions. All three may be silver bromide, or all three silver chloride, emulsions. The finer the grain of the slow emulsion, the less the quantity that is usually necessary. The slow emulsion may also be added to the neighbouring emulsion. In Example 1, to a contrasty gelatino silver bromide emulsion is added an acetone solution of 5-(2-ethyl-1-(2)- benzoxazolylidene - ethylidene) - 3 - heptyl - 1 - phenyl - 2 - thiohydantoin and then a slow gelatino silver bromide Lippmann type emulsion. The product is mixed with a soft gelatino silver bromide emulsion to which Lippmann type emulsion has also been added, and the mixed emulsion coated. In Example 2, to a contrasty gelatino silver chloride emulsion sensitized with the dye of Example 1 is added a slow fine-grain gelatino silver chloride emulsion, and the product is then mixed with a soft gelatino silver chloride emulsion to which also has been added the slow finegrain emulsion, and the mixed emulsion is coated. In Example 3, the procedure is as in Example 1, but the two emulsions are applied to a support in adjacent layers. The use of mixed emulsions and superimposed emulsion layers in colour photography and multi-contrast material is referred to. Specifications 524,552, 532,098, 540,451, 540,464, and 544,134 are referred to.
Patent GB-574834-A (GB)
Title: Improvements in or relating to the production of chlorinated rubber
IPC: C08C19/14
Filed: 1942-04-22
Abstract: Chlorinated rubber is prepared by treating with chlorine rubber which has been digested in water at 180-235 DEG  C. for 1 to 8 hours and subsequently washed, dried and dissolved in a solvent such as carbon tetrachloride, tetrachlorethane, ethylenedichloride, chloroform or benzene.  In treating natural or artificial dispersion of rubber, coagulation is effected after the digestion.  Specifications 523,749 and 574,835 are referred to.
Patent GB-230089-A (GB)
Title: Improvements in antiseptic-anaesthetic medicaments
Filed: 1925-02-27
Abstract: Medicaments having antiseptic and local an sthetic properties consist of the picric acid salts of amino substituted aromatic acid esters such as n-butyl-p-aminobenzoate, ethyl-p-aminobenzoate, methyl-m-amino-p-hydroxybenzoic acid, diethylaminoethyl-p-aminobenzoate (procaine), di-n-butylaminopropyl-p-aminobenzoate.  These picrates may be prepared by causing one molecule of picric acid to react with three molecules of the local an sthetic in a solvent such as water, alcohol, benzol, or benzine.
Patent GB-397867-A (GB)
Title: Improvements relating to filters
IPC: B01D25/00
Filed: 1932-02-25
Abstract: Edge filters are built up of discs, sheets or strips of celluloid, synthetic resin, metal or the like to the whole surface p  of which a "matt" finish is given, that is the surface is roughened to such a degree only as to make it appear lustreless. The "matt" surface may be secured by passing the material between heated roughened rollers or by heating the material and passing it between cold roughened rollers.  In the case of metal the surface may be prepared by sand-blasting.  Specification 210,101, [Class 46, Filtering &c.], is referred to.
Patent GB-486982-A (GB)
Title: Improvements in or relating to weighbridges, especially portable weighbridges
IPC: G01G19/02
Filed: 1937-02-25
Abstract: 486,982. Weighing - apparatus. TURNER, W., and ASKEW, G. Feb. 25, 1937, No. 5677. [Class 143] A portable weighbridge, especially of the type adapted to be inserted in turn under each wheel of a vehicle, comprises a resilient beam 12 supported at both ends below a platform 10, a lever system 6 for transmitting the load on the platform to the beam 12 at a point or points intermediate its supports, and an indicator 18 actuated in dependence on the deflection of the beam. The levers 6 support the platform on knife-edges 9 and are fulcrumed in suspended stirrups 4. The indicator is actuated from the under side of the beam below the adjacent ends of the levers 6, by a lever 16, and is carried by arms 19 fixed to the base of the frame 1 out of contact with the sides. A protective casing 25 fixed to the frame is placed around the indicator. Ramps may be placed at each end of the weighbridge.
Patent GB-638288-A (GB)
Title: Magnetic recording and reproducing
IPC: G11B5/58
Filed: 1947-02-28
Abstract: 638,288. Magnetic recording and reproducing apparatus. BRUSH DEVELOPMENT CO. Feb. 28, 1947, No. 5886. Convention date, March 2, 1946. [Class 40 (ii)] In a magnetic recording and reproducing apparatus using a disc or endless band record, the transducer is made to follow the magnetic track by means of a stylus which is coupled to the transducer and which engages a guide track whose movement is coupled to that of the magnetic track. When the record takes the form of a disc 31, Fig. 2, the guide member 4-21 may be supported on top of the disc 31 to which it is keyed by a pin 3-41, so that a stylus 61 which is coupled to the transducer 62 engages a spiral track 4-27 and causes the transducer 62 to traverse the magnetic surface 30 of the disc 31. In another form the spiral track may be formed on a raised centre part of the disc 31. In a further form the guide track may be mounted underneath the turntable 32 facing downwards, Fig. 18, the stylus 61 being carried by a separate arm 5-56 coupled to the transducer arm 60 by a spring 5-65. In yet another form the guide track may be carried on a lower turntable 5-11, Fig. 15, the stylus arm 5-21 being coupled to the transducer arm 60 by a link 5-32, wherein lost-motion is provided by means of a .pin-and-slot connection in order to ensure that both stylus 61 and transducer 62 make contact with their appropriate surfaces. Driving engagement between the shaft of the motor and the inner edge of the turntable is effected by means of jockey pulleys mounted on spring- loaded plates, Figs. 9 and 10 (not shown), the shaft of the motor being stepped to provide alternative speeds when coupled with one or the other of the jockey pulleys in order that either magnetic or ordinary gramophone records revolving at different speeds may be used, a suitable gramophone pick-up being provided for the latter type of record. In an alternative construction, Figs. 12 and 13 (not shown), a single jockey pulley is used and a second speed is obtained by the use of an intermediate shaft which is coupled to the motor shaft by a rubber tyre and is mounted on a separate spring-loaded plate which is moved under the control of a suitable changeover lever. When the magnetic record is a helical trace on a detachable endless band 6-11, Figs. 20 and 21, mounted on a drum, the transducer 6-12 is pivotally mounted on an arm 6-73 which is pivotally mounted on a sliding carriage 6-72, and which carries at its other end a stylus 61 engaging a guide track 6-13 on a cylinder 6-61 coupled to the drum by means of an intermediate wheel 6-63. The drum is driven by means of a motor shaft 3-12 and a rubber-tyred jockey wheel 6-91.
Patent GB-622022-A (GB)
Title: Improvements in welding irons for electric-arc welding of small workpieces
IPC: B23K9/28
Filed: 1947-03-03
Abstract: 622,022. Holders for arc welding. PHILIPS LAMPS, Ltd. March 3, 1947, No. 6007. Convention date, April 26, 1944. [Class 39(iii)] A supply conductor 1 within the handle 5 of an arc welding iron is connected to the electrode 3 by a splil bush 2, the electrode being surrounded by a ceramic, etc. mouthpiece 4 which is resiliently clamped within a slot 8 at the end of said handle or is secured to th( latter by a separate clamping member, not shown. Alternatively, the resilient bush 2 is adapted simultaneously to clamp both the electrode 3 and the mouthpiece 4 to the conductor 1.
Patent GB-110111-A (GB)
Title: Improvements in and relating to Vehicle Lamps.
Inventor: PHILLIPS JOHN
IPC: F21S13/00
Filed: 1917-04-28
Abstract: 110,111. Phillips, J. April 28, 1917. Vehicular lanterns; convertible oil, candle, and like lamps; reservoirs, attaching to lanterns.- The bottom a of the lantern is provided with a shallow projecting screwed bearing b to receive the screwed candle socket g, and is formed at its edges with downturned flanges of a depth at least equal to that of the projecting bearing so that the lantern will stand level when the candle socket is removed. As shown, the edges c are coiled around a stiffening wire carried by the lamp body e, and the remaining edges f are bent back upwards and inwards to form guides for an oil or like container which may replace the candle tube. The candle tube is inserted in the bearing from the inside of the lamp.